This is the only video on YouTube I have seen with this option (although it doesn't make said video that much better, there is a noticeable jump in quality/QUALITY). Does anybody have any more information about this?

>>10167092
Ok, maybe "not bad" is an understatement regarding >>10167010.
Try the high quality for the sc2 vid though, and fullscreen it. Barely any difference compared to the low quality version, all the units are still blurry.